Calculator: calculate the annual simple flat interest rate to negociate in order to earn a certain simple flat rate interest on the principal (money starting amount) by duration and additional transaction fees

Calculator: annual simple interest rate to negociate to earn a certain interest

Annual simple flat interest rate = (Simple flat rate interest × Number of days in a year) ÷ (Principal × Duration in days)

Latest calculated annual simple flat interest rates

Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 60,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 5 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 01, 2017, to date: Jan 30, 2021, namely for a period of 1,370 days (44 Months and 29 Days) if the commission fee (withdrawal or payment) is 0%.May 26 05:33 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 52,091 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 338 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jul 27, 2016, to date: Feb 27, 2017, namely for a period of 215 days (7 Months) if the commission fee (withdrawal or payment) is 0.2%.May 26 05:14 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 25, 2017, to date: Apr 25, 2027, namely for a period of 3,683 days (121 Months) if the commission fee (withdrawal or payment) is 0%.May 26 04:58 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 5,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 96 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Dec 05, 2017, to date: Dec 05, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.May 26 04:58 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 74,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 1,200 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 27, 2017, to date: Jun 27, 2017, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0.2%.May 26 04:51 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 5,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 0.8 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Mar 23, 2017, to date: Feb 23, 2018, namely for a period of 337 days (11 Months) if the commission fee (withdrawal or payment) is 0%.May 26 03:08 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 205,900 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 7,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Aug 23, 2016, to date: Sep 01, 2018, namely for a period of 739 days (25 Months without 22 Days) if the commission fee (withdrawal or payment) is 0.3%.May 26 01:48 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 80,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 5,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jul 08, 2017, to date: Feb 28, 2018, namely for a period of 235 days (7 Months and 20 Days) if the commission fee (withdrawal or payment) is 0.2%.May 25 23:24 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 71,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 450 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 03, 2018, to date: Oct 03, 2018, namely for a period of 153 days (5 Months) if the commission fee (withdrawal or payment) is 0.5%.May 25 23:13 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 10,500 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 9 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Feb 03, 2017, to date: Feb 03, 2022, namely for a period of 1,826 days (60 Months) if the commission fee (withdrawal or payment) is 0%.May 25 21:31 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 2,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 18 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: Jan 27, 2018, to date: Feb 27, 2018, namely for a period of 31 days if the commission fee (withdrawal or payment) is 0%.May 25 21:20 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 4,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 10 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 31, 2017, to date: Jun 30, 2017, namely for a period of 30 days if the commission fee (withdrawal or payment) is 0%.May 25 21:00 UTC (GMT)
Calculate the simple flat interest rate on the invested amount (principal, initial starting amount of money lent, deposited or borrowed), of 25,000 units (Dollar, Euro, Yen, Pound, Franc, etc.), in order to produce an interest of 18.5 units (Dollar, Euro, Yen, Pound, Franc, etc.), from date: May 11, 2005, to date: May 11, 2015, namely for a period of 3,652 days (120 Months) if the commission fee (withdrawal or payment) is 0%.May 25 19:01 UTC (GMT)
All annual simple flat interest rates calculated by users


How to calculate / negociate the simple flat interest rate of a principal - initial starting amount of money lent, deposited or borrowed, in order to collect or pay a certain simple flat rate interest by the duration and any additional transaction fees (withdrawal, payment in advance, etc.).

Annual simple flat rate interest formula:

  • I = S × p% × n

  • I = n years simple interest charged
  • S = initial amount (principal)
  • p% = annual simple flat interest rate (percentage of the principal, charged as interest)
  • n = number of years of the lending or borrowing the money
  • Formula of the simple flat interest rate applied on the principal - initial starting amount of money lent, deposited or borrowed, in order to earn a simple flat annual rate:

  • p% = I ÷ (S × n)

Examples of how to calculate the simple flat interest rate on the principal amount in order to earn a certain simple flat rate interest:

  • 1) What is the simple flat interest rate of the principal S = 20,000 units that has to be lent, deposited or borrowed, for a period of n = 5 years, if the simple flat rate interest collected or paid D = 3,500 units?
    Answer:
    p% = I ÷ (S × n) = 3,500 ÷ (20,000 × 5) = 3,500 ÷ 100,000 = 3.5 ÷ 100 = 3.5%
  • 2) What is the simple flat interest rate of a principal S = 5,000 units, that has to be lent, deposited or borrowed, for a period of n = 3 years, if the simple flat rate interest collected or paid D = 300 units?
    Answer:
    p% = I ÷ (S × n) = 300 ÷ (5,000 × 3) = 300 ÷ 15,000 = 3 ÷ 150 = 1 ÷ 50 = 2 ÷ 100 = 2%

Annual simple flat interest rate formula calculated for a period of n years:

  • Simple flat interest rate, p% = I ÷ (S × n)
  • Interest, I = S × p% × n
  • Principal, S = I ÷ (p% × n)
  • Number of years of the period of the deposit, lending or borrowing, n = I ÷ (S × p%)

Formula of the simple flat interest rate of the principal for an annual simple flat rate interest calculated for a period of m months:

  • Simple flat interest rate, p% = (12 × I) ÷ (S × m)
  • Interest, I = (S × p% × m) ÷ 12
  • Principal, S = (12 × I) ÷ (p% × m)
  • Number of months of the period, m = (12 × I) ÷ (S × p%)

Formula of the simple flat interest rate of a principal for an annual simple flat rate interest calculated for a period of d days:

  • Simple flat interest rate, p% = (365 × I) ÷ (S × d)
  • Interest, I = (S × p% × d) ÷ 365
  • Principal, S = (365 × I) ÷ (p% × d)
  • Number of days of the period, d = (365 × I) ÷ (S × p%)

More examples of how the simple flat interest rate of a principal for a simple flat rate interest formula works:

  • 1) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 6.67 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 6.67) ÷ (400 × 5) = (12 × 6.67) ÷ 2,000 = 80 ÷ 2,000 = 4%
  • 2) Calculate the simple flat interest rate of the initial amount S = 400 units that would generate a simple flat rate interest I = 7.5 units in m = 5 months.
    Answer:
    p% = (12 × I) ÷ (S × m) = (12 × 7.5) ÷ (400 × 5) = 90 ÷ 2,000 = 4.5%.